2. Know‍ the elements: ‍Lean syrup ordinarily consists of ‍a mix of codeine, promethazine, and also other substances.⁣ Familiarize ⁢on your own with the ingredients ⁣list and seek advice from that has a Health care Experienced⁣ if you have any ‌problems or pre-present disorders. But with lots of applications and guarantees, spott